Consideration of SPS Test Satellite Receiving Station Arrangement Using Reconstruction by Least Squares Method

抄録

A small satellite program is under study to demonstrate the technology for the Solar Power Satellite (SPS). This small satellite is supposed to conduct a demonstration test of the onboard transmitting antenna in a low earth orbit, and it is considered to measure the antenna pattern on the ground to evaluate its effectiveness. In the ground measurement of the satellite antenna pattern, without using the movement and attitude control of the satellite itself, it is effective to set up the receiving stations at multiple points on the ground and compare the reception levels with each other. However, the number and arrangement of these receiving stations and the method of processing data including errors have not been studied in detail. The relationship between the measurement accuracy of each receiving stations and the boresight position, and the dependency of the measurement error by the receiving station placement method are shown. As a result, the boresight position can be estimated at 1/20 or less of the beam width when the measurement of the receiving station is performed within 3 dB. Throughout these results, we obtained a guideline for accurate pattern measurement.